I didn't tell you Edwards was a Top 25 prospect. You implied that Zimmerman and Strasburg would cost more than Shark. Do you read your own posts? Neither one of those are worth more in a trade to the Cubs than Shark based upon where the Cubs are currently as an organization. As for MY POST and my position, you keep looking at some mythical trade based upon "production vs potential". For some reason you think Epstein is going balls to the wall this season to beat the Cardinals and get a ring. They are not. This year, they are still evaluating their potential. They aren't trading away Edwards' potential this off-season. Things could change at the deadline perhaps.
I said it would cost something more than Russell(top 10) and McKinney who was fringe top 100. There's a vast difference between top 100 and top 25. In this case, I think it would cost them Edwards. As for "where they are as an organization," I stated in my first post that I didn't think it was likely. Where I took issue is you essentially implied it's stupid to trade Edwards. I wholeheartedly disagree.
Looking at the cubs and saying "their not ready yet" is completely short sighted. Of course their not and I'm not implying they are going to win the division or even finish above .500. The reason it wouldn't be stupid to trade Edwards if it nets you someone like Strasburg is simply because mid-20's top-15 pitcher don't hit the market often. Would Strasburg on this year's cubs be a year maybe two early? Sure. But A) you don't make that sort of trade without assurance you can sign that player long term and B) 2 years from now Strasburg is going to be 28 and we have no reason to believe he will fall off from the 4 WAR player he's been. There's no guarantee that quality of player will be available in FA when they are "ready." This is the same path the team actually took trying to sign Tanaka. They weren't ready to win last year either. But, pitchers of that age and quality are rare.
You said yourself things could change at the deadline. The obvious implication you're making here is if the cubs get off to a hot start and are better than we think they will be that they could use the better player. I agree in an ideal world that's the move. My point is that there is no guarantee someone like Strasburg is available then and even if he is you know perfectly well teams are going to rake other teams over the coals to extract more value at the deadline. I believe trades are typically cheaper in the offseason because there are other options out there where as at the deadline it's more scarce. For example, if you were to look for a pitcher now there's still players like Shields in FA and the trade market is bigger. Also I would point out that if you hit FA you're probably paying a first round pick when the cubs are ready and that could conceivably be as good of a player as Edwards anyways.
Another example I would point out is the James Shields trade. Were the Royals "ready" when that trade was made? Probably not. I'm sure KC's front office would have been more optimistic than general fans. Simply put, its about acquiring talent when you can. And ultimately many would argue that the James Shields trade was a large catalyst for the Royals run this past season.